ALTROZ SERVICE MANUAL

FATC 31 8 Inspect refrigerant line  Is piping free of damage and cracks?  Are piping connections free of oil grime? (Visual Inspection)  Are piping connections free of gas leak- age?  Are piping installation points on con- dense free of gas leakage?  Are piping installation points on receiv- er/drier free of gas leakage?  Are piping installation pints on A/C Compressor free of gas leakage?  Are piping installation points on cooling unit free of gas leakage.  Perform gas leak inspection using gas leak tester. Are above items okay? Yes Go to next step. No If piping or A/C component (s) is damaged or cracked, replace then go to Step 19.If there is gas leakage, repair or replace connection and replace condenser, then go Step 19. 9 Inspect evaporator piping connections in cooling unit for gas leakage Are piping connections for evaporator in cooling unit free of gas leakage? Yes Adjust refrigerant amount to specified lev- el, then go to Step 19. No If piping damaged or cracked, replace then go to Step 19. If there is gas leakage, repair or replace connection and replace condenser then go to Step 19. 10 Verify whether malfunction is in compres- sor oil or elsewhere Add 30 ml of compressor oil. Is noise heard when racing engine? Yes Go to next step. No Troubleshooting completed. Explain repair to customer. 11 Verify whether malfunction is in A/C com- pressor or elsewhere Drain compressor oil. Is it contaminated with metal particles? Yes Go to next Step. No Replace A/C compressor, then go to Step 19. 12 Verify whether malfunction is somewhere in a/c system or elsewhere Is compressor oil whitish and mixed with water? Yes Replace entire A/C system (Excluding heater), then go to Step 19. No Go to next step. 13 Inspect A/C compressor oil Is compressor oil darker than normal and contaminated with aluminum chips? Yes Replace A/C compressor and condenser, then go to Step 19 (Since A/C compressor may be worn and receiver/drier may be clogged, replacement of receiver/drier is necessary.) No Condition is normal. Recheck malfunction symptoms. 14 Verify whether malfunction is in A/C com- pressor or elsewhere Is noise heard immediately after A/C compressor is stopped? Yes Replace A/C compressor, then go to Step 19. (A/C compressor discharge valve left open) No Go to next step.